Rewriting on paper vs. screen

After I finish rewrites on my laptop, I like to do a 2nd (or 50th as it may be) pass on a printed-out version of a script. I’m not sure why, but I always seem to catch more errors and fixes when I read it on paper. I think it might have something to do with the way we read screens–we’re trained to scan more and scroll through things. On paper, we’re trained to read more carefully.